Amoco is a brand of fuel stations operating in the eastern United States, and owned by British company BP since 1998. The "Amoco Corporation" (/æməkoʊ/) was an American chemical and oil company, founded in 1889 around a refinery in Whiting, Indiana, and was officially the "Standard Oil Company of Indiana" until 1985. Originally part of the Standard Oil Trust, it focused on producing gasoline for the new automobile market. In 1911, as part of the break-up of the Standard Oil Trust, it became an independent corporation. Incorporated in Indiana, it was headquartered in Chicago, and formally adopted the name Amoco in 1985. Amoco merged operations with BP in 1998.Although the Amoco Corporation ceased to exist in 1998, the Amoco name was resurrected in 2017 as a brand that service station owners could choose to use when they purchased supplies from BP in selected areas of the United States.In 1925, Standard Oil of Indiana absorbed the "American Oil Company", founded in Baltimore in 1910, and incorporated in 1922, by Louis Blaustein and his son Jacob. The combined corporation operated or licensed gas stations under both the Standard name and the American or Amoco name (the latter from American oil company) and its logo using these names became a red, white and blue oval with a torch in the center. By the mid-twentieth century it was ranked the largest oil company in the United States. In 1985, it changed its corporate name to Amoco. Amoco merged with British Petroleum in December 1998 to form BP Amoco, renamed BP in 2001.The firm's innovations included two essential parts of the modern industry, the gasoline tanker truck and the drive-through filling station. Its "Amoco Super-Premium" lead-free gasoline was marketed decades before environmental concerns led to the eventual phase out of leaded gasoline throughout the United States. Amoco's headquarters were located in the Amoco Building (also called the Standard Oil Building, and nicknamed "Big Stan", now the Aon Center) in Chicago, Illinois.In October 2017, BP revealed that it would be reintroducing the Amoco name to select US markets. As of 2021, there were over 100 new Amoco locations in the states of Georgia, New York, New Jersey, Virginia, North Carolina, South Carolina, Michigan, Minnesota, Indiana, Wisconsin, Missouri, Florida, Ohio, Pennsylvania, West Virginia, and Illinois.
Toluene is a colorless, mobile liquid with a distinctive aromatic odor slightly milder than that of benzene. It is used in the manufacture of benzene, p‐xylene, for poly (ethylene terephthalate) solid state resins, and toluene diisocyanates (TDI) for use in the preparation of polyurethanes. It is also used as a solvent. The principal source of toluene is catalytic reforming of refinery streams. Most of the toluene generated this way is blended into gasoline as a component of >C5 reformate. Toluene is an irritant if inhaled. Toluene diisocyanate is the most important derivative of toluene, but other derivatives are also discussed and include benzoic acid, benzyl chloride, vinyltoluene, toluenesulfonic acid, benzaldehyde and toluenesulfonyl chloride.
A technique combining the use of microhardness indentations and an aluminum etch decoration process has been developed to measure the relative ability of polymer coatings to protect an integrated circuit (I.C.) device surface from mechanical damage. A threshold for inducing a crack in a passivated silicon surface was measured by applying a grid of indentation loads and measuring the load at which the aluminum etchant revealed damage in the passivation. A polyimidesiloxane and two polyimide materials, with widely different elastic moduli, were tested. p]The ability of a coating to protect the chip surface was found to increase with increasing compliance of the film. The materials with the higher threshold loads had lower elastic moduli and allowed greater indenter penetration depth for a given load. Our finite element mechanical model supports the hypothesis that the stress generated by the indenter tip is absorbed and distributed by the lower modulus materials. The stress is transferred to the passivated silicon in the case of the higher modulus film, leading to damage at lower loads.
The thermal curing chemistry of a fluorinated polyamic acid based on 6FDA (hexafluoroisopropylidene bis(phthalic anhydride)) and APBP (4,4′-bis(4-aminophenoxy)biphenyl) was studied by thermal-IR spectroscopy. Anhydride formation was observed at intermediate cure temperatures and maximized at approximately 220°C. The degree of anhydride formation was affected by the solvent, being least in 2-methoxyethyl ether and increasing in the solvent order: 2-methoxyethyl ether < NMP < 2-(2-ethoxy)ethoxyethanol. In addition to the back reaction of amic acid to anhydride and amine, at least one additional mechanism of anhydride formation is observed. The onset of the second mechanism of anhydride formation is coincident with the onset of imidization, which leads us to propose that water generated by imidization can react with anhydride during the curing process, before escaping from the film, to form diacid. Cyclization of diacid to anhydride is proposed as the second mechanism of anhydride formation.
To enhance the effectiveness of urea fertilizers, a new coated slow-release fertilizer was developed using Aswan Red Clay (ARC) and a binder material called chitosan a biodegradable polymer was used to improve the property of urea. Characterizations of slow release of the urea granules were made using Scanning Electron Microscopy technique and energy dispersive X-ray analysis. Refractive Index method used for determine the rate of releasing. Ammonia volatilization was estimated by using the forced-draft technique. The static release experiment showed that the urea coated by Aswan Red Clay (ARCCU) gave a release of 9.78% at the first day and 95.36 at 24 day, in the same condition. The results of ammonia that volatized during 6 weeks showed that the total losses of ammonia gas for uncoated urea( UCU) and coated urea was 59.54% and 43.33%, respectively which main that the coating of urea is most costly in application.
This paper points out an anomalous phenomenon which can occur in long-term market tracking studies. It is possible for every population or sample segment to exhibit behavioral or attitudi-nal changes in the same direction; but for the aggregate group, the changes can be in the opposite direction or no significant changes at all might be evident. A concrete example from the field of gasoline marketing is presented, the causes explained, and the implications for analyzing and interpreting the results from long-term tracking studies are discussed.
